Alarm clock



FIG. 1 is a front elevational view of an alarm clock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a first perspective view thereof shown; and,

FIG. 8 is a second perspective view thereof shown. 

CLAIM The ornamental design for an alarm clock, as shown and described. 